The sections in this article areWhy Do Cells Need Prevacuolar Compartments?ThePLC/PVCin Yeast and Mammals: An OverviewEvidence for Post‐Golgi/Prevacuolar Compartment(s) in PlantsInteraction ofPLC/PVCwith Endocytotic PathwaysThe Final Step: Delivery into the Lysosome/Vacuole